==============================================================================
==============================================================================
==============================================================================

        AAA         NNN       NN KK  KK   EEEEEEE
       AA AA        NNNN      NN KK KK    EE
      AA   AA       NN NN     NN KKKK     EE
     AA     AA      NN  NN    NN KKK      EE
    AA       AA     NN   NN   NN KKKK     EEEEEE   n nnn    ee   w  w  w   sss
   AAAAAAAAAAAAA    NN    NN  NN KK KK    EE       nn   n  e  e  w  w  w  s  
  AAAAAAAAAAAAAAA   NN     NN NN KK  KK   EE       n    n  eeee  w  w  w   ss
 AA             AA  NN      NNNN KK   KK  EE       n    n  e      w w w      s
AA               AA NN       NNN KK    KK EEEEEEEE n    n   ee     w w    sss 

==============================================================================
===========================NUMBER 6, APRIL 1996===============================
==============================================================================
                   (Edited by M.Buescher, KFA Juelich, IKP)
                       
                             Juelich, April 17 1996
Dear colleague,

here is the April issue of our ANKE news with the following messages
for you:

The geometry of the second sideward wire chamber ('stop chamber')
including the readout boards has been fixed by Lueder von Horn and
Thomas Kirchner. The chamber will be positioned such that the readout
boards are pointing towards the first chamber ('start chamber').
Obviously, there is not much space available especially in the low
momentum region but with the present layout everything fits into
place. A drawing of the geometry is available on our ANKE server:
'/pub/ikp2/anke/pictures/mwc/anke_sideview.ps'. In addition, there are
two new subdirectories '/pub/ikp2/anke/pictures/mwc/mwc1' and
'/pub/ikp2/anke/pictures/mwc/mwc2' with ACAD and Postscript drawings
of the two sideward wire chambers. 

The proposal on K- production at ANKE by Heinz Mueller et al. has been
presented during the PAC meeting on April 16 and 17. I'll let you know
about the reaction of the PAC as soon as possible. O. Schult gave a
presentation related to the recent review on 'Detectors and Polarized
Targets at ANKE' which took place here in Juelich on March 6. The
reviewers' report about the polarized target (written by Profs. K.Rith
and E.Steffens from the University Erlangen-Nuernberg) has been
received. Summarizing, the reviewers recommend to go ahead with the
design and construction of an atomic beam source based on the concept
of the HERMES and Wisconsin target sources. It should also be
mentioned that after the meeting the groups from Erlangen 
(E. Steffens) and Cologne (H. Paetz gen. Schieck) who have long term
experience with polarized sources, decided to join our project
(welcome 'on board'!!).  

The reviewers' report on the detection system at ANKE (written by
Prof. E.Grosse, GSI) was given to us during the PAC meeting. Prof.
Grosse is somewhat concerned about the acceptance 'holes' between the
K+ telescopes and encourages us to perform thorough calibrations of
the angular and momentum acceptance. In the meantime Arndt Franzen and
I performed further simulations of the acceptances and possible
calibration measurents. We think that the problems mentioned by
Prof. Grosse can be taken care of. If you want to know the details,
please contact me directly. I'll try to keep contact to Prof. Grosse
and to further discuss issues regarding the detection system with him. 

Ruediger Koch told me that the first RAL 170 chips have been delivered
to Rossendorf and that they will be tested in the near future. 

                       Best regards, Markus Buescher